... Plant Sources: Cruciferous vegetable Synonyms: Broccoli seed extract, broccoli extract, sulforaphane powder, broccoli extract powder, broccoli, broccoli p.e, sulforaphane ... Powder Extract Method Water & Ethanol Specification 0.1%,1%,2%,5%,10% or customise. Test by HPLC Appearance ... as follows: 1. 100% natural broccoli seed extract, tested by HPLC; 2. High purity and large production capacity; 3 ...